reduce()

Add Answer

putsan answered on May 21, 2020 Popularity 10/10 Helpfulness 4/10

answer reduce()

related javascript reduce

related JavaScript Reduce

related reduce javascript

related A.reduce

related reduce javascript

related reduce in js

related javascript reduce

related Using Array.reduce() method

related JavaScript Array Methods .reduce()

reduce()

Comment

const array1 = [1, 2, 3, 4];
const reducer = (accumulator, currentValue) => accumulator + currentValue;

// 1 + 2 + 3 + 4
console.log(array1.reduce(reducer));
// expected output: 10

// 5 + 1 + 2 + 3 + 4
console.log(array1.reduce(reducer, 5));
// expected output: 15

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: javascript

Link to this answer
Share Copy Link

Contributed on Jan 17 2021

putsan

0 Answers Avg Quality 2/10

Closely Related Answers

javascript reduce

Comment

187

var array = [36, 25, 6, 15];

array.reduce(function(accumulator, currentValue) {
  return accumulator + currentValue;
}, 0); // 36 + 25 + 6 + 15 = 82

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 21 2020

TC5550

0 Answers Avg Quality 2/10

JavaScript Reduce

Comment

const arr = [1, 2, 3]
const result = arr.reduce((acc, curr) => acc + curr, 0)
// 1 + 2 + 3 = 6
console.log(result)

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Dec 21 2022

Jozvan

0 Answers Avg Quality 2/10

reduce javascript

Comment

let array = [36, 25, 6, 15];
 
array.reduce((acc, curr) => acc + curr, 0)
// 36 + 25 + 6 + 15 = 82
c7208648b19086ffaef0da34bbb912f6

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jul 05 2022

Rick Oburu

0 Answers Avg Quality 2/10

A.reduce

Comment

const arr = [3, 5, 4, 11, 7, 22];

arr.reduce((previousValue, currentValue) => {
    return previousValue + currentValue;  // <--- 3 + 5 + 4 + 11 + 7 + 22 = 52
}, 0)

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Aug 06 2022

The Stanliest Stanley

0 Answers Avg Quality 2/10

reduce javascript

Comment

var depthArray = [1, 2, [3, 4], 5, 6, [7, 8, 9]];

depthArray.reduce(function(flatOutput, depthItem) {
    return flatOutput.concat(depthItem);
}, []);

=> [1, 2, 3, 4, 5, 6, 7, 8, 9];


// --------------
const prices = [100, 200, 300, 400, 500];
const total = prices.reduce((total, cur) => {return total + cur} )
//  init value = 0 => total = 1500;


// --------------
const prices = [100, 200, 300, 400, 500];
const total = prices.reduce(function (total, cur) => {
                   return total + cur
                }, 1 )
// init value = 1 => so when plus all numnber will be result => 1501;

// --------------
const prices = [100, 200, 300, 400, 500];
const total = prices.reduce((total, cur) => total + cur )
// 1500;

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Mar 03 2022

Zidane (Vi Ly - VietNam)

0 Answers Avg Quality 2/10

reduce in js

Comment

Reduce in js

let arr=[5,6,2];
let sum=arr.reduce((accumulator,current,index,arr)=>{
   return accumulator+=current;
});
console.log(sum);//5+6+13

accumulator acumulate(hold) the sum output

reduce methood creat a new array and does not change actual array

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 19 2023

pabel reja

0 Answers Avg Quality 2/10

javascript reduce

Comment

const sum = array.reduce((accumulator, element) => {
  return accumulator + element;
}, 0);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Apr 11 2021

Cooperative Capybara

0 Answers Avg Quality 2/10

Using Array.reduce() method

Comment

// define a reusable function
const calculateSum = (arr) => {
    return arr.reduce((total, current) => {
        return total + current;
    }, 0);
}

// try it
console.log(calculateSum([1, 2, 3, 4, 5]));

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: www.kindacode.com

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Aug 29 2022

Lucky Lizard

0 Answers Avg Quality 2/10

JavaScript Array Methods .reduce()

Comment

const list = [1, 2, 3, 4, 5];
console.log(list.reduce((number, nextNumber) => number + nextNumber));
// --> 15

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: github.com

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 07 2021

Hilarious Hippopotamus

0 Answers Avg Quality 2/10

reduce()

Contents

More Related Answers

reduce()

Closely Related Answers

javascript reduce

JavaScript Reduce

reduce javascript

A.reduce

reduce javascript

reduce in js

javascript reduce

Using Array.reduce() method

JavaScript Array Methods .reduce()

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.